{"last_modified": {"type": "/type/datetime", "value": "2010-07-12T17:41:41.992442"}, "title": "Harbour dues and transit charges at Montreal and Atlantic ports", "created": {"type": "/type/datetime", "value": "2009-12-11T06:16:06.945906"}, "covers": [6137875], "subject_places": ["Canada", "United States"], "first_publish_date": "1880", "latest_revision": 4, "key": "/works/OL12173932W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL6085747A"}}], "dewey_number": ["386.2440971"], "type": {"key": "/type/work"}, "subjects": ["Rates", "Port charges", "Pilots and pilotage", "Inland water transportation", "Harbors", "Towing"], "revision": 4}